Evaluation of K0 in stiff clay by back-analysis of convergence measurements from unsupported cylindrical cavity. Acta Geotechnica
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10313447" target="_blank" >RIV/00216208:11310/15:10313447 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s11440-015-0395-7" target="_blank" >http://dx.doi.org/10.1007/s11440-015-0395-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11440-015-0395-7" target="_blank" >10.1007/s11440-015-0395-7</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of K0 in stiff clay by back-analysis of convergence measurements from unsupported cylindrical cavity. Acta Geotechnica
Original language description
The coefficient of earth pressure at rest K0 of fine-grained soils is often being estimated empirically from the overconsolidation ratio (OCR). The relationships adopted in this estimation, however, assume that K0 is caused by pure mechanical unloading and do not consider that a significant proportion of the apparent preconsolidation pressure may be caused by the effects of ageing, in particular by secondary compression. In this work, K0 of Brno Tegel, which is a clay of stiff to hard consistency (apparent vertical preconsolidation pressure of 1800 kPa, apparent OCR of 7), was estimated based on back-analysis of convergence measurements from unsupported cylindrical cavity. The values were subsequently verified by analysing a supported exploratory aditand a two-lane road tunnel. As the simulation results are primarily influenced by soil anisotropy, it was quantified in an experimental programme. The ratio of shear moduli aG was 1.45, the ratio of horizontal and vertical Young's moduli
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JM - Structural engineering
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Geotechnica
ISSN
1861-1125
e-ISSN
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Volume of the periodical
2015
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
719-733
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-84947486066